Collective Birthday Calendar

Our Birthday

HELP FOR ENTERING A BIRTHDAY DATE.

Entering a date

With writing
Click on the left in the date picker box.
Enter the date numbers!
Write May - as the fifth month - 05!

With selection
Click the icon!
Click on the year number at the top left!
After scrolling, select a year and then a month.
Finally, choose a day!

TOGETHER YOU ARE

YEARS OLD.

WHEN WILL YOU BE

YEARS OLD TOGETHER?

ON THIS DAY:

IF YOU WOULD LIKE TO GET A REMINDER ON THAT YOU ARE YEARS OLD, PLEASE TYPE HERE YOUR E-MAIL ADDRESS.

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WE DO NOT SEND ADS,
WE DO NOT USE YOUR E-MAIL ADDRESS FOR OTHER PURPOSE.

The main idea of the Collective Birthday Calendar is to calculate the common birthdate of many people together. The program is able to calculate the average birthday of 2-30 people collectively, up to the 2000th birthday.

Let me quote the ancient philosopher, Democritus: „Life without celebrations is a long journey without rest.”

I can highly recommend this new "Collective Birthday Calendar and I wish you good luck and many happy "collective" birthdays!

July 4, 2012, Budapest, Hungary

Sincerely,
Jozsef Antal Biro

P. S. This website was published on April 7, 2010 in Hungary.
http://kozosszulinaptar.hu